Automatic record-changing apparatus



Feb. 16, 1943, r

AUTOMATIC RECORD CHANGING APPARATUS Filed Oct. 17, 1940 7 Sheets-Sheet 1 FIG. I

I J l--. 5 hm P- m Q5 40 A 77 I26 127 HVENTQR JACKSON H. PRESSLEY 8% r ATTOR N Feb. 16, 1943. J. H. PRESSLEY 2,311,596

AUTOMATIC RECORD CHANGING APPARATUS Filed Oct. 17, 1940" 'T Sheets-Sheet 5 AT ONEY Feb. 16, 1943. J. H. PRESSLEY ,59

AUTOMIQTIC RECORD CHANGING APPARATUS Fi led Oct. 17, 1940 v 7'Sheets-Sheet 4 INVENTOR 1943- J. H. PRESSLEY 1,596

AUTOMATIC RECORD CHANGING APPARATUS I Filed Oct. 17,1940. 7 7 Sheets-Sheet 5 FIG. I2

INVENTOR' H.J'PRESSLEY t I Gig-E 17 V ATTORNEY Feb. 16, 1943. J. HIPRESSLEY 2,311,596

AUTOMATIC RECORD CHANGING APPARATUS Filed Oct. 17, 1940 'T Sheets-Sheet 6 '57 /-|5O INVENTOR F l I N'H.PRESSLEY .xeeazaeaazezzzezqaacq 20 21 I53 lsl l5 b- 1943. J. H. PRESSLEY ,311,5

AUTOMATIORECORD CHANGING APPARATUS Filed Oct 17, 1940' 7 Sheets-Sheet 7 ATTORNEY Patented Feb. 16, 1943 AUTOMATIC RECORD-CHANGING APPARATUS Jackson H. Pressley, Marion, Ind., assignor to Farnsworth Television and Radio Corporation, a corporation of Delaware Application October 17, 1940, Serial No. 361,472

9 Claims.

This invention relates to automatic recordchanging apparatus and more particularly to improved mechanism in such apparatus for chan ing and reversing records.

An object of the present invention is to provide an improved and simplified mechanism for moving a record from a magazine to a turntable and for reversing a record on the turntable.

In accordance with the present invention, there is provided an automatic recordchanging apparatus for an electric phonograph with a turntable. This record-changing apparatus comprises a pivotally movable magazine for supporting a stack of records adjacent the turntable, means for releasing records from the magazine, a record carrier for moving a released record to the turntable, and a reversing device adapted to cooperate with said record carrier and said magazine for reversing a record on said turntable. The mechanism for pivotally moving the magazin comprises a power-driven cam wheel, means associated with the magazine including a member cooperating with the cam wheel in a predetermined manner during one revolution thereof for pivotally moving the magazine a predetermined distance, and means for eiiecting cooperation of said member with the cam wheel in a difierent predetermined manner during the next revolution of the cam wheel, for pivotally moving the magazine a different predetermined distance. The magazine is moved the first predetermined distance for cooperating with the record carrier in moving :1 released record to the turntable and is moved the second predetermined distance for cooperating with the record carrier and reversing device to reverse a record on the turntable.

For a better understanding of the invention, together with other and further objects thereof, reference is made to the following description taken in connection with the accompanying drawings, and its steps will be pointed out in the appended claims.

In the accompanying drawings:

Fig. 1 is a top plan view of the record-changing apparatus;

Fig. 2 is a side elevation view showing a partial assembly of the record-changing apparatus;

Fig. 3 is a front elevation view of the upper portion of the record-changing apparatus;

Fig. 4 is a front elevation view of the lower portion of the record-changing apparatus;

Fig. 5 is a perspective view of the upper portion of the record-changing apparatus shown in the act of reversing a record;

Fig. 6 is a fragmentary sectional view taken on line 66 of Fig. 1;

Fig. 7 is a vertical sectional view through the record magazine showing the location of the records therein;

Fig. 8 is a view showing the side of the cam wheel with the continuous cam groove which controls the pivotal movement of the magazine;

Fig. 9 is a sectional view of the cam wheel and its associated parts which cooperate in pivotally moving the magazine;

Fig. 10 is an elevation view of the parts shown in Fig. 9;

Fig. 11 is a fragmentary view showing the locking mechanism for the record-reversing member;

Fig. 12 is a view looking in the direction of the arrows of line l2-l2 of Fig. 4, showing mechanism for moving the pickup arm in a hori zontal plane and a vertical plane;

Fig. 13 is an elevation view showing the associated parts forming the tripping mechanism for initiating a record-changing cycle;

Fig. 14 is an assembly view showing the switch of the tripping mechanism as viewed from line I i-14 of Fig. 13;

Fig. 15 is a view taken on line l5|5 of Fig. 13, showing the member for setting the tripping mechanism;

Figs. 16 and 17 are elevation views showing the mechanism for automatically controlling the positioning of the pickup arm at the beginning of different sized records;

Fig. 18 is a fragmentary plan view showing part of the mechanism for manually setting the record-changing apparatus either to play one side or two sides of the records in th magazine; and

Fig. 19 is a fragmentary front elevation view showing another portion of the mechanism for manually setting the record-changing apparatus either to play one side or two sides of the records in the magazine.

Referring articularly to the drawings, th invention is here illustrated as having a base or supporting plate 20, as clearly shown in Fig. 1. Disposed above said base plate is a horizontally rotatable turntable 2| supported by a centering pin 22.

As shown in Fig. 4, the turntable 2| is driven by a friction wheel 23 shown to engage the rim of the turntable 2 I. The friction wheel 23 is operatively connected by means of a shaft 24 to an electric motor 25 to which current is supplied from a suitable source through the conductors 26.

A reproducer 21 (Fig. 1) is used for taking the recorded matter from the records on the turntable 2|. The reproducer 21 is pivotally mounted for movement in a vertical plane on a pair of studs or other pivoting means 28 carried by bearing portions 29 provided on a pickup arm 30. The opposite end of said pickup arm is rotatably mounted on a pedestal 30A (Fig. 12) to permit the reproducer to move in a horizontal plane over a record on th turntable when the stylus of the reproducer 21 is in engagement with the record groove of said record. Means are provided for elevating the pickup arm 30 and swinging said pickup arm horizontally to position the stylus of said pickup arm for engagement with the initial groove of a record on the turntable. This means will be described in detail hereafter.

Means are provided for supporting a plurality of records, including a bracket 3| (Fig. 5) fixedly secured to the base plate 26. The bracket 3| has a pair of upwardly curved spaced arms 32 connected and braced by a web 33. The enlarged ends of the arms 32 provide bearings 34 (Figs. 1 and 3) for short shafts or studs 35 of a record magazine or reservoir 36 (Figs. 1 and 2). The magazine 36 is pivotally mounted in the bearings 34 for a swinging movement between the solid line position and the dotted line position shown in Fig. 2 of the drawings.

The magazine 36 is so constructed as to receive a plurality of records which may be of various different diameters.

The magazine 36 includes a forwardly projecting flange 31 (Figs. 2 and 3), a back portion 38 and a lower crossbar 39 connecting the lower ends of the side portions of the flange 31. A sectional view of the crossbar 39 is shown in Figs. 6 and '7 of the drawings. It is apparent from these figures that this bar is angular in shape having a substantially horizontal portion 40 and a substantially vertical portion 4|. Carried by the crossbar 39 at points equally spaced from the center, on the vertical portion 4|, are a pair of forwardly projecting pins 42 and 43 (Fig. 1) disposed to engage the lower edges of records of a stack 44 to support the weight of the records in the magazine 36, as shown in Fig. 7. These pins may be notched near the ends at 45 to prevent the records from slipping oil.

Formed on or secured to the back 38 of the magazine 36 are pairs or ribs 46 and 41 (Fig. 3).

The rear record of the stack of records 44 will have its upper peripheral portion in engagement with the ribs 46 (Fig. '7) when the records are stored. The ribs 41 function in the transfer of a record from the magazine 36 to the turntable 2|, as will be described hereafter.

Means are provided for transferring the supported records one at a time from the magazine 36 to the turntable 2|. The first step in this operation is to separate a record from the stack of records 44 (Fig. 7 This requires the cooperation of an electric motor 48 and a, gear box or speed reducing mechanism 49 which are disposed on the under side of the base plate 26, as shown in Fig. 4 of the drawings. The gear or driving mechanism is arranged to drive shaft 56.

Secured to the shaft 50 is a large cam wheel 5| having in its sides cam tracks or grooves to be described later, and having on its periphery a cam 52 shown in Fig. 2, for operating a mechanism to chop or remove a record from the magazine 36. A lever 53 is pivoted intermediate its ends on a shaft 54 which is carried by a bracket 55 depending from the underside of the base plate 20, Fig. 2. At one end, the lever 53 carries a roller 56 which is adapted to engage the cam 52 on the periphery of the cam wheel 5|, when it is desired to feed a record from the magazine 36 to the turntable 2 The opposite end of the lever 53 is pivotally connected to an upwardly extended rod 51 (Fig. 2) passing through the base plate 20 and through a guide 58 secured to the upper side of the base plate 26. At its upper end the rod 51 is bent forwardly and its forward portion 59 passes through an elongated opening 60 in a knife or chopping lever 6| shown in Fig. 3. This lever 6| is pivoted intermediate its ends as at 62, to the crossbar 39 of the magazine 36.

One end of the lever 6| (Fig. 3) extends be tween the supporting pins 42 and 43, and this end 63 of said lever lies closely against the vertical portion 4| of the crossbar 39 as shown in Figs. 6 and 7. The upper surface of the portion or end 63 of the lever 6| inclines downwardly toward the vertical portion 4| of member 39 as is best shown in Fig. 6. The center portion of the vertical leg 4| of the crossbar 39 is scooped out or cut away, as clearly shown in Fig. 3. The record in the magazine 36 which rests against the ribs 46 also rests on the portion 63 of the lever 6|, and against the vertical portion 4| of the crossbar 39.

When the cam wheel 5| is rotated in the manner previously described, the cam 52 (Fig. 2) strikes the roller 56, causing the lever 53 to be rocked on its pivot 54 drawing downwardly on the rod 51, thus rocking the end 63 of the lever 6| upward. This movement of the lever 6| elevates the record resting on it and because of the incline of the upper face of the knife portion 63 and because of the cut-away portion of the crossbar 39, the record slides downwardly out of the magazine and lands with its lower edge resting on spaced cushioning pads or blocks 64 disposed on the base plate 20 shown in Figs. 1 and 6, and is held against rearward movement at its lower edge by a pad 65 on an upright 66.

The next step is to move the record from the cushioning pads or blocks 64 to the turntable 2|. To accomplish this, the cam wheel 5| (Fig. 2) is provided with a cam groove 6'! in which is disposed a pin 68 which is carried by an arm 69 slotted at its lower end as at (0, the slot receiving the shaft 50. At its upper end, the arm 69 is pivotally connected as at H to a lever 72 secured at its upper end to the shaft 54. Also secured to the shaft 54 is a segmental gear 13 spaced along the shaft 54 from the lever 12 as shown in Fig. 4, and having teeth in mesh with a segmental gear 14 formed on the under side of a rearwardly extended tongue or projection 15 of a record carrying and guiding means or pan 16, as shown in Fig. 2.

The pan 16 (Fig. l) is pivotally mounted on brackets Tl projecting upwardly from the base plate 20 and is adapted to swing through an are from the full line position of Fig. 2 to the dotted line position, and then to a position surrounding and below the turntable 2|. When a record has been released from the magazine onto the cushioning pads 64, the rearwardly extended tongue or projection 75 of the pan I6 is disposed below these pads 64. As the pan I6 is swung downwardly on its pivots 11 toward the dotted line position by the segmental gear I3 which is driven in a manner previously described, the tongue or projection 15 swings upwardly between the pads 64, and engages the lower edge of the released record and elevates it.

As the pan moves downwardly in cooperating to move the released record to the turntable, the magazine 36 is swung in the bearings 34 through an are from the full line position shown by Fig. 2 to the dotted line position shown by the same figure. For the purpose of swinging the magazine through the arc, the cam wheel 5| is provided with a cam groove 18 (Figs. 8 and 9) in which a pin 19 is adapted to operate. The pin 19 is affixed to a gear 88 and is movable in a path concentric to the axis of the gear 80. The gear 88 is mounted on a beam 8| and is adapted to move independently of the beam 8|. When the cam 5| is rotating and the pin 19 is following the cam groove 18, the magazine 36 is pivoted to cooperate in moving a new record to the turntable.

Movement of the cam wheel 5| produces a sliding movement to the beam 8 I This beam is provided with an elongated opening 82 through which the shaft 50 passes. At its upper end the beam 8| is pivotally connected as at 83 (Fig. 2) to an arm of a bell-crank lever 84 pivoted as at 85 on a bracket 86 depending from the underside of the base plate 28. The opposite end of the bell-crank lever 84 is pivotally connected as at 81 to a link 88 which is pivotally connected at its upper end as at 89 to a bracket 90 fixedly secured to the magazine 36 (Figs. 1 and 2). Referring to Figs. 1 and 2, it will be apparent that the bracket 90 is disposed on the magazine 38 rearwardly of the pivot studs 35, and that when the beam 8| is moved upwardly by engagement of the pin 19 in the cam groove 18, the bell-crank lever 84 will be rocked in a clockwise direction with the aid of the tension of a spring 9|. The spring 9| preferably is affixed to the base plate and the lever 84 in a suitable manner so that. when the magazine 36 is in the full-line position shown in Fig. 2, the spring 9| is under tension. As the bell-crank lever rotates, it will operate through the link 88 and rock the magazine 36 from the full line position of Fig. 2 to its dotted line position in that figure.

From the foregoing it will be apparent that the magazine 36 is swung pivotally after the extension 15 of the pan 16 Fig. 2') has engaged and moved the new record from the pads 84. The rear portion or back 38 of the magazine 36 flares outwardly as at 92 (Figs. 2 and '7). The upper portion of the released record is. of course, in contact with the back 38 of the magazine before it is moved to the turntable.

As the pan 18 moves downwardly on its pivots in the manner previously described, the record slides forwardly on the pan 16. The movement of the magazine 36 assists the forward movement of the record, one edge of which is elevated and resting against said magazine and the other edge of which extends through the pan l6, engaging and sliding across the surface of the turntable. During this record-changing process the turntable rotates, but the record is held from lateral movement by the inner edge of the pan 15,

If a 10-inch record is being placed on the turntable, its forward edge will engage against a vertical wall 93 of the pan 18 (Figs. 1 and 2), and its forward movement will be stopped. Now, as the cam wheel 5| continues to rotate with the shaft 50, having completed one-half of a revolution, the pin 19, in following the cam track 18, will cause the beam 8| (Fig. 2) to move downwardly, and in moving cause the bell-crank lever 84 to move in a counterclockwise direction. thus developing tension in the tension spring 9|. As

the bell-crank lever 84 moves, the link 88 moves the magazine 36 back to its full line position, shown in Fig. 2. As the magazine 38 swings back to the latter position, the rear edge of the record is gradually lowered into a properly centered position on the turntable 2|.

It is to be noted that the edge of the record first comes into engagement with the turntable on the opposite side of the centering pin 22 so that the record is not hindered in its sliding movement. Further, the turntable is covered with a suitable material to permit sliding a record across it, but at the same time having sumcient traction so that a record maintains a fixed position when it is being played.

The pan 1.8 is designed to accommodate different sized records. With this in view, said pan is provided in one plane with annular portion 94 having a central opening defined by the line 95. Said central opening is of slightly greater diameter than the diameter of the turntable 2|. This is apparent by referring to Fig. l. The turntable is of less diameter than the smallest record to be played. The are defined by the wall 93 has a radius slightly larger than the radius of a 10-inch record.

When a 12-inch record is released from the magazine 36, and is moved into playing position upon the turntable, in the same manner as previously described for a 10-inch record. it jumps over the wall 93, owing to its large diameter, and its forward edge contacts a wall 96 of the pan 18 (Figs. 1 and 2). The inner circumference of the wall 96 has a radius slightly larger than the radius of a 12-inch record. This wall 96 limits the forward movement of a 12-inch record, and as the magazine is swung back to the full line position of Fig. 2, in the same manner as previously described, the l2-inch record is let down and properly centered on the turntable 2|.

After one side of a record on the turntable is played. means are provided for reversing the record so that its opposite side may be then played before it is returned to the magazine 36. To this end a segmental gear 91 is secured to the shaft 50 Figs. 9 and 10). and is arranged to rotate the gear 180 during each revolution of the shaft 50. The gear Bil is held in its operative position on the beam 8| by a small spring-biased plunger 98 (Figs. 9 and 10) which travels in a groove 99 provided in the gear 80. A pair of notches I09 and Illl (Fig. 10) which are spaced 18G apart in the groove 99 of the gear 88 cooperate with the spring-biased plunger 98 for locking the gear 88 in two distinct positions. When the springbiased plunger 98 engages the notch I00, the gear 80 is locked in position to cause the pin 19 to travel in the cam track 18 Fig. 8) as the cam Wheel 5| rotates to place a new record on the turntable, as previously described. When the spring-biased pin 98 engages the notch ||J|. the gear 80 is locked in position to cause the pin 18 to travel in the cam track I03 as the cam wheel 5| rotates to reverse a record on the turntable.

Now, during the first complete revolution of the shaft 50, when a new record is fed to the turntable, as previously described, the cam wheel 5| in rotating causes a pin I04 (Figs. 8 and I1). carried by the cam wheel 5|, to engage and impart a partial rotation to a small star wheel I95 (Fig. 11) which is pivotally mounted on the under side of the base plate 28.

Fixedly secured to the star wheel are three equally spaced pins I06. These pins |UB are spaced as shown in Fig. 11 so as to engage a spring-biased lever II (see Fig. 11) during every other revolution of the cam wheel When the star wheel I05 is moved to the position shown in Fig. 11, the spring-biased lever IN is moved in a counterclockwise direction surficiently far to move a notched end I08 out of engagement of a finger I09 provided on a seg mental gear H0. A connecting link I II is pivotally connected to the segmental gear H0 and an L-shaped lever I I2 as at I I3 and I I4, respectively. A spring H5, having one end anchored to the base plate 20 and the other end anchored to the link III, tends to move the segmental gear H0 and the lever H2 in a clockwise direction. To prevent the members H0 and H2 from moving, a roller I I6 is provided on the L-shaped lever I I2, and this roller engages the side of a cam portion III provided on the cam wheel 5| (Figs. and 11).

When the tripping mechanism has been actuated after one side of the record has been played and the cam wheel 5| begins to rotate, the roller H6 in traveling over the side of the cam portion H1, which tends to taper inwardly as shown in Figs. 11 and 13, allows the tension-spring H5 to move the segmental gear H0 and the lever H2 in a clockwise direction. The segmental gear III] is in mesh with a pinion H8 secured on a shaft II9 extending through the base plate and cut away at opposite sides to form a lug I20 see Fig. 3).

As the segmental gear I I 0 rotates in the manner previously described, the finger I09 engages the end of a screw I2| secured to the end of an arm I22, which is pivotally supported on the lower end of the rod 5! (Fig. 2). As the arm I22 is moved by engagement of the finger I09 therewith, the rod 51 will be turned and likewise the lever 53. As shown in Fig. 11, the lever 53 is pivotally connected to the arm I22 as at I23, and is slidably mounted on the shaft 54 and held in normal position by a coil spring I24 (Fig. 11). When the shaft 51 is rotated in a counterclockwise direction, the lever 53 is pivoted therewith and slides on the shaft 54 to compress the spring I24. Such movement of the lever 53 will carry the roller 56 out of the path of the cam surface 52 on the cam wheel 5| so that the knife or chopping lever 6| will not be actuated to remove a record fromthe magazine 36 during the recordchanging cycle of the cam wheel 5|.

Above the base plate 20 the lug I20 of the shaft I I9 enters a notch in the lower end of a stud I25 journaled in a bearing I26 (Figs. 1 and 3). The bearing I26 is provided on the lower part of the magazine 36 as shown in Fig. 3. To the upper end of the stud I25 is secured an arm I2I offset downwardly as shown in Fig. 3, and at its free end carrying a reversing member I28, including a flexible plate portion I29 and a spring frame member I30 connected with the flexible plate I29 as at I3I, and also by a spring piece I32. At its lower end, the frame-like member I30 is free of the flexible plate I29 and normally sets forwardly thereof. The manner in which the reversing member is connected to the magazine 36 and the shaft II 9 permits the reversing member I 28 to move with the magazine 36 when the reversing member I28 is pivoted by the shaft I I9.

When the segmental gear H0 is rotated as previously described, and rotates the pinion H8 and the shaft II9, the reversing member I28 will be swung from a position on one side of the magazine, as shown in Fig. 3, to a position in front of the magazine, in which position it slopes rearwardly, as shown in Fig. 5 and is adapted to move with the magazine! 36 when the magazine is pivoted. Now, as the cam wheel 5| rotates, the beam 69 is moved upwardly in the manner previously described and in moving it rotates the segmental gear I3 which acts through the gear portion I4 to rock the pan I6 from the position adjacent to the turntable, to the solid line position in Fig. 2. As the pan I6 acts to return a record to the magazine 36 in this manner, the record will be disposed against the reversing member I28, which will prevent the record from entering on the pins 42 and 43 of the magazine 36. When the pan I6 is again lowered, it permits the record resting against the reversing member I28 to slide back on the turntable in a reverse position. The record is assisted in this sliding action by the pivotal movement of the magazine 36 to which is affixed the reversing member I28.

After the record has been returned to the turntable in reversed position, the reversing member I28 is swung back to its normal position on the side of the magazine 36. To accomplish this, the cam portion II'I of the cam wheel engages the roller II 6 on the lever H2. As the cam wheel 5| continues to revolve, the lever H2 is moved in a counterclockwise direction on its pivot I33. This movement of the lever I I2 moves the link III downwardly against the biasing action of the spring II 5, causing the segmental gear II 0 to move in a counterclockwise direction. The counterclockwise movement of the segmental gear H0 rotates in a clockwise direction the pinion H8 and the shaft H9 which, in turn, swing the arm I21 and member I28 outwardly. Immediately thereafter the cam wheel 5| has moved to where the pin I04 engages and moves the star wheel I05sufiiciently far to move the pin I06 out of engagement with the upper end of the lever I01 (Fig. 11), and permitting a tension-spring I34 to swing the lever I01 in a clockwise direction so as to cause the notched end I68 to engage the finger I09, locking the reversing member in the position shown in Fig. 3.

After the finger I09 has been moved away from the end of the screw I2I, the tension spring I24 slides or moves the lever 53 back into the position shown in Fig. 11, to position the roller 56 into the path of the cam 52 on the periphery of the cam wheel 5|.

While the cam wheel 5| is revolving to reverse the record in the manner previously described, the pin IS in following the cam track I03 produces less upward movement of the beam 8| (Fig. 2). As the cam wheel 5| revolves and the record is reversed, the segmental gear 91 (Fig. 10) engages and rotates the gear to swing the pin I9 from the position for following the cam track 03 to the position for following the cam track I8. This change in the position of the pin I9 takes place immediately after the cam wheel 5| has rotated to the position where the pin I9 leaves the cam track-I03 and enters the cam track portion I02;

It will be noted by referring to Fig. 8 that the cam track I03 is much shorter than cam track I8. The cam track I03 serves to swing the magazine 36 far enough to assist in placing a record on the turntable 2| in reversed position. The reason for the difference in the length of paths of cam tracks I8 and I 03 is that when the new record is being placed upon the turntable, the magazine must move sufficiently far so that the record will be carried from the cushioning pads 64 into playing position upon the turntable 2|,

whereas when the record is being reversed, the record is moved only from the front of the magazine, or, more particularly, from the front of the reversing member I28 to playing position on the turntable.

Immediately after the record has been re versed, as previously described, the segmental gear 91 engages and rotates the gear 86 (Fig.10) 180 to move the notch IOI out of engagement with the spring-biased pin 98 and to move this gear 80 to the position shown in Fig. 10. It will then be apparent that the parts will next act to pivotally move the magazine so that it will cooperate in moving a new record into playing position upon the turntable in the manner previously described. When the next recordchanging cycle is initiated and the gear 80 is rotated 180, while a new record is placed on the turntable, the mechanism will automatically be set for reversing the record when one side has been played. Owing to the pins I66 being located on every other point of the star wheel I65, Fig. 11, and the alternation of the position of the pin 19 on the gear 86, Fig. 9, the reversing mech anism is only brought into operation on each second revolution of the shaft 50.

When a record on the turntable has been completely played, the movement of the pickup arm 36 actuates a tripping mechanism, presently to be described in detail, and causes the electric driving motor 48 to start and to drive the speed reducing mechanism 49 and the drive shaft 50. The cam wheel I, which is driven by the shaft 56, is thereupon driven through one complete revolution and comes to rest in the position shown in Figs. 2 and 4, and the driving motor 48 is shut off. As the cam wheel 5| begins to rotate, the pan 13, which is positioned below the record on the turntable, is raised to return the played record to the magazine 36. Immediately thereafter the lever 53 is actuated to release a new record from the magazine, and the beams 69 and BI (Fig. 2) are moved upwardly. Thereupon, the pan 16 is moved in a counterclockwise direction lFig. 2) and the magazine 36 is swung in a clockwise direction (Fig. 2). As a result, the new record moves from the magazine 36 to playing position on the turntable 2! in the manner heretofore described.

After a record is positioned on the turntable, the pickup arm 36 is swung to position the stylus at the beginning of said record. As Will later be explained in detail, when the stylus of the pickup arm reaches the end of the record, the pickup arm is elevated and swung horizontally away from above the record. The elevating means controlling the pickup arm comprises a cam wheel I (see Figs. 4 and 12) having a cam surface I36 which has a notch or depressed portion I31 (Fig. 12) in which rests the lower end of a rod I 38. This rod extends upwardly through a hollow shaft I39. The hollow shaft I39 has aiifixed to its upper end a plate I39A. At one end of the plate I39A there is provided a pin I39B to which is pivotally connected the pickup arm 30, as shown in Fig. 1. When the rod I38 is raised into engagement with the pickup arm 36, the pickup arm is pivoted in a vertical plane about the axis of the pin I39B to raise the stylus of the pickup arm out of engagement with the record on the turntable 2I. The circumference of the cam wheel I35 tapers inwardly from the point I40 to the point I4I.

As shown in Fig. 12, a lever I42 is clamped on the shaft I39 below the pedestal 36A. A thrust bearing I43 is disposed between the arm I42 and the pedestal 30A to provide free movement of the arm I42. Disposed at the lower end of the shaft I39 and the rod I38 is a clutch I44, presently to be described in greater detail. Between the lever I42 and the clutch I44 is disposed a coil spring I45. The coil spring I45 surrounds the shaft I39 and obviously will be compressed when the clutch I44 is elevated. Secured to the clutch I44 is a depending pin I46 which lies in the path of movement of a second cam surface I41, as shown in Figs. 4 and 12.

After the record-changing and record-reversing mechanism has been tripped, the shaft 50 will being to rotate, as previously described. During the first part of the movement of said shaft, the cam wheel I35 afllxed thereto will rotate, causing the cam surface I36 to raise the rod I38 out of the notch I31, bringing the elements of the clutch I44 together, compressing the spring I45. As the rod I38 reaches the high point I49 of the cam surface I36, the pickup arm 30 has been elevated, as has been previously described, to raise the stylus of the pickup arm 30 out of contact with the record on the turntable.

At this time the cam surface I41 engages the depending pin I46, forcing the pin to move in an arc in a horizontal plane. This movement of the pin I46, of course, is transmitted to the pickup arm 36 by the clutch I44, the shaft I39 and the plate I39A (see Figs. 1 and 12), swinging the pickup arm in a horizontal plane to a position beyond the edge of the record. A flat spring I48 (Fig. 12), depending below the base plate 26, extends into the path of movement of a pin I49 extending horizontally from the clutch I44. As the clutch I44 is rotated by the pin I46, which moves over the cam surface I41, as previously described, the pin I49 engages the flat spring I48. After the lever I49 comes into engagement with the spring I48, the speed of the movement of the pin I49 is retarded by the resistance of the spring I48. This resistance prevents the pickup arm 30 from being thrown outward with a sudden uncontrolled movement, and results in the pickup arm being given a steady outward move ment.

It, of course, will be understood that the cam wheel I35 is continually turning. As the pin I46 travels over the cam surface I41, the pickup arm 30 is held in its outermost position through the cooperation of the clutch I44 and the shaft I39. When the pin I46 reaches the end of the cam surface I41, the tension of the fiat spring I48 acting through the pin I49 gradually turns the clutch I44, and returns the pin I46 back to its normal position. During this latter movement of the clutch I 44, the pickup arm 30 is, of course, swinging inwardly to bring the reproducer 21 to the beginning of the record.

As the lower end of the rod I38 reaches the high point I40 on the cam wheel I36, the pickup arm begins to descend. This, of course, lessens after the stopping means for the pickup arm engages the edge of the record.

The stop for engaging the edge of the record and limiting the inward movement of the pickup arm under the influence of the flat spring I48 is shown in detail in Figs. 1, 16 and 17. This means includes an arm I50 (Fig. 16) which is aifixed to a support II to rotate therewith in a horizontal plane. At the free end of the arm I50 there is provided a small roller I53 which is arranged to be moved into engagement with the peripheral edge of a 12-inch record on the turntable 2|. The support I5I is mounted to rotate on a bearing surface provided on the base plate 20. A part of the support I5I extending below the top surface of the base plate 20 is reduced in cross section as shown in Figs. 16 and 17. An annular member I52 is aflixed in a suitable manner preferably by screw I55 to the reduced portion of the support I5I to rotate therewith. A spring I54 is affixed to the annular member I52 and to some suitable fixed object such as the base plate 20. When in normal position, the spring I54 maintains the arm I50 in the position shown in Fig. 1. The arm I50 is actuated against the biasing action of the spring I54 by an L-shaped lever I56. The lever I56 is fixed to the pickup arm 30 and moves therewith.

When the cam Wheel I35 acts to elevate the pickup arm 30 and swing it horizontally away from above the record, as previously described, the member I56 is raised sufiiciently to pass above a boss I51 on the arm I50. As the cam wheel I35 continues to rotate and the pickup arm 30 is swung inwardly as heretofore described, the arm 30 is lowered sufficiently, due to the contour of the cam surface I36, to cause the member I56 on the pickup arm 30 to engage the side of the boss I51 provided on the arm I50, as illustrated in Fig. 16. Continued movement of the pickup arm 30 results in movement of the arm I50 against the biasing action of the spring I54. When the pickup arm 30 has been swung inwardly a suihcient distance, the roller I53 will engage the edge of a 12-inch record I58, as illustrated in Fig. 1'7.

When the stop or roller I53 engages the edge of a 12-inch record I58, the rod I38 has reached the point I4I on the cam surface I36 (Fig. 12). As the rod I38 moves downwardly into the notch I31, the pickup arm 30 is lowered to bring the stylus into engagement with the beginning of the record and the member I56 is moved into a notch I59 provided in the free end of the arm I50. When this occurs, the arm I50 is moved away from the edge of the record by its biasing spring I54 to the position shown in Fig. 1.

When a -inch record is in playing position on the turntable, the arm I50, in moving inwardly under the action of the pickup arm 30, as previously described, causes an adjusting screw I60 provided on the arm I50 (Fig. 17) to engage a stop I6I provided on the base plate 20. The engagement of the elements I60 and I6I takes place at a time when the stylus of the pickup 21 is over the starting groove of a 10-inch record on the turntable. Continued movement of the cam wheel I35 causes the stylus of the pickup arm to be lowered into engagement with the record and at the same time moving the extension or member I56 into the notch I59 of the lever I50, thus allowing the spring I54 to move the lever I50 outwardly in the manner previously described.

From the above, it will, of course, be understood that when a. 12-inch record is in playing position on the turntable, the stylus of the pickup arm is stopped over the beginning of said record by the engagement of the roller I53 With the periphery of said record. Whereas, when a 10-inch record is in playing position on the turntable, it is the engagement of the screw I60 with the stop I6I which positions the stylus of the pickup arm over the beginning of said record.

The automatic record-changing or recordreversing cycle is actuated by the automatic tripping mechanism, previously mentioned, which will now be described in greater detail. The pickup arm 30, which has been lowered to engage the stylus with the initial groove of the record on the turntable, is moved inwardly by the stylus following the spiral groove on the record. In moving toward the center of the record, the pickup arm moves with it the hollow shaft I39 and the arm I42.

Referring particularly to Fig. 13, the arm I42 is shown to support a spring-biased member I62 and a pin I63. As reproduction goes on and the pickup arm 30 moves toward the center of the record, said pickup arm moves with it the arm I42 to which is attached said spring-biased member. The member I62 engages the serrated surface of a turned-over portion I64 provided on a pivoted lever I65 (Figs. 13 and 14), which is pivotally supported by a bracket I66 secured to the underside of the base plate 20. As the stylus of the pickup arm advances toward the center of the record, the member I62 advances notch by notch on the ratchet surface of the portion I64.

As the stylus approaches the inner groove of the record, the pin I63 on the arm I42 engages a tapered member I61 provided on the lever I 65 (Fig. 14). As the stylus moves inwardly, the pin I63, in traveling over the tapered surface of member I61, tends to move the member I61 and therewith the lever I65 downwardly or in a counterclockwise direction against the biasing action of a spring I68 Fig. 14).

As illustrated in Fig. 14, the free end of the lever I65 supports a pin I69, which engages a tapered ear I10 provided on a lever IN. The lever IN is pivotally mounted on a shaft I1IA which is fixed to the bracket I66 as shown in Figs. 13 and 14. The upper end of the lever IN is bent over at I12, as shown in Fig. 13, so as to engage a notch I13 provided near the free end of the lever I65. When the stylus of the reproducer moves into the spiral groove customarily provided as the inner groove of the record, the pin I63 is moved along the tapered edge of the member I61 sufiiciently far to move the lever I65 downwardly sufficiently to allow the notch I13 to move out of engagement with the turned-over end I12 of the lever I1I. When this occurs, the tension spring I68 which is connected to the levers I65 and HI, as illustrated, moves the lever I1I in a counterclockwise direction. This movement of the lever I1I causes the tapered ear I10 to move the pin I69 and therewith the free end of the lever I65 downwardly. A lever I14, which is arranged to move with the lever "I, is likewise moved in a counterclockwise direction. As the lever I14 swings in a counterclockwise direction, a mercury switch I 15, supported on the free end of the lever I14, is moved into an angular position, thus closing the switch and starting the motor 48 (Fig. 4) and thus actuating the recordchanging mechanism.

As appears in Figs. 13 and 15, an arm I16 is fixedly secured to the reduced portion of the member I16A which is afiixed in a suitable manner to rotate with the drive shaft 50. A member I11 also is mounted on the reduced portion of the member I16A and is free to rotate about the axis of the shaft 50. A spring I18 connects the members I16 and I11 as shown in Fig. and normally maintains the lever I11 in engagement with a pin I19 on the member I16. The member I11 is adapted to be moved against the tension of the spring I18 and into engagement with an ear I82. As the shaft 50 rotates to position a new record on the turntable or to reverse a record in the manner previously described, the arm I16 likewise rotates with the shaft 50. Near the end of the record-moving operation the upper end of the spring-biased member I11 engages a notch I80 of a member I8I to move the member I8I and the levers HI and I14 in a clockwise direction to the position shown in Fig. 14. The member I8! is fixed in a. suitable manner to the shaft I1I A to rotate therewith. When the memoer I11 moves the member I8I in a clockwise direction and therewith the shaft I1IA, levers Ill and I14, which are also fixed to the shaft I1IA, also are moved in a clockwise direction. The clockwise movement of the lever I1I causes the spring I68 to swing the lever I65 upwardly in a clockwise direction. The clockwise movement of the lever I65 brings the notch I13 thereof into engagement with the turned-over end I12 of the lever HI and locks the lever I1I in the position shown in Fig. 14. The clockwise movement of the lever I14 with the shaft I1 IA moves the mercury switch I15 to open the circuit including the motor 29. After the lever I1I is locked and the switch I15 is open, the lever I11 is moved out of engagement with the notch I80 of the member I8I by the spring I18 and the shaft 50 comes to rest.

It is to be pointed out that in case the inner groove of the record is an eccentric groove instead of a spiral groove, the pin I63 on the arm I42 may be swung away from the member I61 (Fig. 14) and not trip the mechanism as previously described. To insure that the mechanism will trip when the pickup arm receives a reverse movement by an eccentric groove, the member I62, which is biased by a spring I83 into engagement with the serrated portion or rack I64, will move the lever I65 downwardly, wherein the tripping mechanism will be actuated and the record-changing cycle will be initiated the same as heretofore described.

The detailed construction of the clutch I44, previously referred to in connection with Fig. 12, will now be described. A flange I84 is associated with the hollow shaft I39 in such a manner as to be slidable thereon and rotatable therewith. A suitable fiber washer I85 is afifixed to the under side of the flange I84. A plate I86, to which are fixed the pins I46 and I49, is fixedly secured to the rod I38. When the needle of the pickup arm is in engagement with a record on the turntable the flange I84 and the washer I 85 are maintained out of engaging relationship with the plate I86 in some suitable manner such as providing an ear on the shaft I39 to engage the washer I85.

When the tripping mechanism is actuated and the pickup arm 30 is elevated by the rotation of the cam wheel I in the manner previously described, the rod I38, in moving over the cam surface I36, moves the plate I86 into engagement with the fiber washer I85. When the lower end v segmental gear 91.

of the rod I38 reaches the high point I 40 on the cam surface I36, the plate I86 has raised the washer I and flange I84 sufilciently to create a tension on the spring I45. The spring I45 maintains an even frictional engagement between the plate I86 and the fiber washer I85. As the cam wheel I35 continues to rotate. the cam surface I41 engages the pin I46, causing the pin I46, the plate I86, and the pin I49 to move in a horizontal plane. The pin I49 moves against the biasing action of the spring I48. Thus, through the frictional engagement between the fiber washer I85 and the plate I86, the shaft I39 is rotated to swing the pickup arm outwardly. Later, under the action of the spring I48 on the pin I49, the pickup arm is swung inwardly to posi tion the stylus into engagement with the outermost groove of the record on the turntable.

When a 10-inch record is in playing position on the turntable, the plate I86 is moved out of engagement with the fiber washer I 85 immediately after the pickup arm 30 is swung to a position over the outermost groove of a record on the turntable. When a 12-inch record is in playing position on the turntable, the pickup arm 30 is stopped on its inward movement to position the stylus over the outermost groove of said record, before the cam wheel I35 has rotated sufficiently far to allow the rod I38 to descend into the notch I31 to break the frictional engagement between the fiber washer I85 and the plate I86. However, as the cam wheel I35 continues to rotate, the tension spring I48, by means of the pin I49, rotates the plate I86. This is possible because of the frictional connection between the plate I86 and the fiber washer I85. The movement of the plate I86 returns the pin I46 to the position shown in Fig. 12. At this time th cam wheel has rotated to where the rod I38 descends into the notch I31 and the frictional engagement between the fiber washer I85 and the plate I86 is broken, and the stylus is lowered into engagement with the outermost groove of a record on the turntable.

An additional feature embodied in this recordchanging mechanism is that the mechanism may be set to play automatically only one side of a record instead of both sides, after which a new record is moved into playing position upon the turntable in the manner previously described. This is accomplished by the movement of a lever I81 which is pivotally connected to the base plate 20 at I88 (Fig. 18). At one end of the lever I81 there is provided a pair of notches I89 and I90. These notches are arranged to engage a pin I9I, which depends downwardly through an elongated aperture I92 in the base plate 20 and is secured to an L-shaped bar I93 (Fig. 19). The lever I93 is slidably mounted preferably in a pair of brackets I 96 suspended from the bottom of the base plate 20. A toe I94 of the L-shaped bar I93 engages a groove I95 provided in the hub of the When the lever I81 is moved to the dotted line position in Fig. 18, the pin I9I is moved to engage the notch I89. The movement of pin I9I into the notch I89 moves the L-shaped bar I93 (Fig. 19) to the right on the pair of supporting brackets I96 sufficiently far to move the segmental gear 91 to the position shown in Figs. 4 and 9, wherein the segmental gear will engage and drive the gear 80, as previously described. The movement of the L-shaped lever I93-to the right is against the tension of the spring I98A which is supported by the lever I93 between the supports I96 and is connected to the lever I93 preferably by means of a flange member as shown in Fig. 19.

Now, when the lever I81 is manually moved to the solid line position in Fig. 18, a lever I98 which is pivotally connected to the lever I8I is moved to the right (Figs. 11 and 18). At the other end of the lever I98 there is pivotally connected one end of the lever I9I which is pivotally connected intermediate its ends to the base plate 20. The opposite end of the lever I9! is shaped in such a manner that it is adapted to be moved into engagement with the lever II2 to prevent its movement in a clockwise direction. The lever I9! is moved into stopping engagement with the lever I I2 when the lever I98 is moved to the right (Figs. 11 and 18). The engagement of the levers H2 and I9! prevents the turnover member 28 (Fig. 3) from being moved to reverse a record, as previously described. Likewise, when the lever I8'I is moved to the full line position shown in Fig. 18, the pin |9I is permitted to move, under the tension of the spring I98A, from engagement with the notch I89 to engagement with the notch I90. At the same time the tension of the spring I98A moves the lever I93 to the left (Fig. 19). When the lever I93 is moved to the left (Fig. 19) under the tension of the spring I98A, the toe I94 of the lever I93 moves the segmental gear 91 out of driving relationship with the gear 80. With the gears 91 and 80 out of driving relationship, the mechanism for reversing a record will not be put in operation. With the lever I8I in the full line position shown in Fig. 18, after one side of the record on the turntable is played, and the tripping mechanism is actuated in the manner previously described, the record will be returned to the magazine 38, without being returned, in a reverse position, to playing position on the turntable, and a new record will be removed from the magazine and placed in playing position upon the turntable, as heretofore described.

From the foregoing, it will be apparent that the mechanism may be manually set to play either one Side or both sides of a record by merely moving the lever I8I to the desired position.

The general mode of operation of the recordchanging apparatus will now be described After a stack of records has been placed in the magazine 36, a master switch is closed to start both motors 25 and 48. The motor 25 rotates the turntable 2| and the motor 48 drives the shaft 50, to which is the cam wheel 5|.

The cam wheel 5|, in rotating, causes the cam 52 to engage the roller 55, moving the lever 53 about its axis 54. moving the rod 51 downwardly, thereupon moving the lever 6| about its axis 62 sumcIent-ly far to lift the rear record in the magazine 3'5 upwardly to release the record. The record then drops with the lower edge landing on the cushioned pads 64.

As the cam wheel 5| rotates, the beam 69 is moved upwardly by the pin 68 which follows the cam track 81 (Fig. 2). This upward movement of the beam 69, by means of the arm I2, causes the shaft 54 and therewith the segmental gear I3 to rotate. This rotating movement of the segmental gear I3, which engages the gear portion I4 provided on the pan I6, causes the pan I6 to swing downwardly. The pan 16, in moving, causes the extension I5 to move upwardly between the pads 64 to engage and lift the released record off of the pads 54.

Continued movement of the cam wheel 5| causes the beam 8| (Fig. 2) to move upwardly as the pin I9 (Fig. 9) follows the cam track I3 (Figs. 8 and 9). Tlfis upward movement of the beam 8| causes the lever 84 to rotate in a clockwise direction, moving the link 88 downwardly and swinging the magazine 36 Fig. 2) in a clockwise direction. When the magazine is swung forward, it cooperates with the pan I6 to cause a portion of the released record to slide along the turntable. Continued movement of the cam wheel 5| causes the pin I9, in following the cam track I8, to move the beam 8| downwardly, returning the magazine 36 to its normal position. The return movement of the magazine 36 permits the released record to drop into playing position upon the turntable.

Shortly thereafter, the pin 19 moves into the cam track portion I02. By this time the segmental gear SI engages and rotates the gear (Fig. 10) after which the locking pin98 engages the notch IOI. By this movement of the gear 80, the pin I9 is positioned to enter cam groove I03 on the next revolution of the cam wheel 5|.

The cam wheel I35 has by this time rotated sufiiciently far so that the spring I48, through the c utch I44, moves the pickup arm 30 inwardly to position the stylus over the outermost groove of a record on the turntable. Immediately thereafter, the rod I38 descends into the notch I3I of the cam wheel I35, moving the stylus into engagement with a record on the turntable and the driving motor 48 is automatically shut off. thus completing a record-changing cycle.

The record-reversing cycle takes place in the following manner:

When the stylus of the pickup arm 30 reaches the inner groove of a record being played, the tripping mechanism, including the arm I42 and the levers I85, III and H4 (Figs. 13 and 14) is actuated. whereby the mercury switch H5 is closed and the driving motor 48 is started.

As the cam wheel I35 rotates, the cam surface I36 Fig. 12) moves the rod I38 upwardly and raises the pickup arm 30 out of engagement with the record. Continued movement of the cam wheel I35 causes the cam surface M1 to move the pin I48 and the clutch I44 to swing the pickup arm away from above the turntable.

Shortly thereafter. the cam wheel 5| rotates to where the roller II6 (Fig. 11), in moving over the cam surface III, allows the tension spring I I5 to move the lever I I2 and the segmental gear H0 in a clockwise direction. The gear H0, in rotating, causes the finger I09 to engage and move the lever I22 in a counterclockwise direction, moving the lever 53 and therewith the roller 50 out of the path of the cam 52. The gear H0, in rotating, drives the gear 8 and turns the shaft II9 to swing the reversing member I28 from one side of the magazine 36 (Fig. 3) to a position in front of said magazine Fig. 5).

As the cam wheel 5| continues to rotate, the beam 69 moves upwardly, swinging the pan I6 upwardly, placing the record against the reversing member I28 and then, as the beam 69 moves downwardly, said beam lowers the pan I6 to a position adjacent the turntable. The pin I9, in following the cam track I03, swings the magazine 36 outwardly sufficiently far so as to cooperate with the pan I6 and the reversing member I 28 to return the reversed record to playing position on the turntable.

Immediately after the magazine 36 returns to its normal position, the segmental gear 91 engages and rotates the gear 80 180, returning the pin I9 to a position to engage the cam track 18, during the next revolution of the cam wheel 5|.

The cam wheel 5| has by this time rotated sufficiently far to cause the cam portion III to engage the roller H6 and. move the lever I I2 and the segmental gear H (Fig. 11) in a. counterclockwise direction. As the gear IIO rotates, the pinion gear H8 is rotated in a clockwise direction, turning the shaft I I8 and swinging the reversing member I28 from in front of the magazine 36 (Fig. to the position on the side of the magazine (Fig. 3). Likewise, this movement of the segmental gear I I0 moves the finger I09 away from the end of the arm I22, permitting the spring I24 to move the lever 53 and the roller 56 to the position in Fig. 11, into the path of the cam 52.

Shortly thereafter, the cam Wheel I35 starts to swing the pickup arm 30 inwardly. As the pickup arm swings inwardly, the member I56 engages and moves the lever I50 inwardly, until the roller I53 (if the record on the turntable is a largesized record) engages the periphery of the rec- 0rd, and stops the pickup 21 over the beginning of the record. Continued movement of the cam wheel I35 lowers the rod I38 and the pickup arm 30 and brings the stylus of the reproducer 2! into engagement with the record.

Continued movement of the cam wheel 5| causes the pin I04 to engage and rotate the star Wheel I05 (Fig. 11), disengaging the pin I06 and the lever I01, permitting the spring I34 to move the lever I01 in a clockwise direction, bringing the notch I08 into engagement with the finger I09 to lock the turnover member I28 in the position in Fig. 3.

The lever I'IB has by this time rotated to where the member l'll engages the notch I80 in the member I8I of the tripping mechanism (Fig. 14') Continued movement of the member III swings the levers III and I74 in a clockwise direction, returning the mercury switch I15 to the position shown in Fig. 14, and the spring I68 thereupon swings the lever I65 upwardly to lock the tripping mechanism. Immediately thereafter, the motor 48 is shut ofi.

When both sides of the record are played, the tripping mechanism is again actuated, the pan I6 is swung upward to return the record to the magazine, and a new record is released from the magazine and another record-changing cycle heretofore described is initiated.

While there has been described what is at present considered the preferred embodiment of the invention, it will be obvious to those skilled in the art that various changes and modifications may be made therein without departing from the invention, and it is, therefore, aimed in the appended claims to cover all such changes and modifications as fall within the true spirit and scope of the invention.

What is claimed is:

1. In an automatic record-changing apparatus, the combination comprising a magazine movable first and second distances at different times; driving means movable through a cycle of operation for each of said movements of said magazine; first and second guiding means on said driving means; connecting means operatively associated with said magazine; a member operatively associated with said connecting means for cooperating with said first guiding means to move said magazine said first distance and for cooperating with said second guiding means to move said magazine said second distance, said member being rotatable relative to said connecting means after each of said movements or said magazine'for changing the cooperative relationship between said member and said first and second guiding means; and an actuating member movable with said driving means for rotating said member after each of said movements of said magazine for changing the cooperative relationship between said member and said first and second guiding means.

2. In an automatic record-changing apparatus, the combination comprising a magazine movable first and second distances at different times; driving means movable through a cycle of operation for each of said movements of said magazine; first and second guiding means on said driving means having a common portion; connecting means operatively associated with said magazine; a member operatively associated with said connecting means for cooperating with said first guiding means to move said magazine said first distance and for cooperating with said second guiding means to move said magazine said second distance, said member being rotatable relative to said connecting means while said member is associated with said common portion for changing the cooperative relationship between said member and said first and second guiding means; and an actuating member movable with said driving means for rotating said member while it is associated with said common portion for changing the cooperative relationship between said member and said first and second guiding means.

3. In an automatic record-changing apparatus, the combination comprising a magazine movable first and second distances at different times; driving means movable through a cycle of operation for each of said movements of said magazine; first and second guiding means on said driving means having a common portion; connecting means operatively associated with said magazine; a member operatively associated with said connecting means for cooperating with said first guiding means to move said magazine said first distance and for cooperating with said second guiding means to move said magazine said second distance, said member being rotatable relative to said connecting means while said member is associated with said common portion for changing the cooperative relationship between said member and said first and second guiding means; resilient means on said connecting means for locking said member against rotation relative to said connecting means while said member is cooperating with said first or second guiding means; and an actuating member movable with said driving means for rotating said member while it is associated with said common portion for changing the cooperative relationship between said member and said first and second guiding means.'

4. In an automatic record-changing apparatus, the combination comprising a magazine movable first and second distances at different times; driving means movable through a cycle of operation for each of said movements of said magazine; first and second guiding means on said driving means; connecting means operatively associated with said magazine; a member operatively associated with said connecting means for cooperating with said first guiding means to move said magazine said first distance and for cooperating with said second guiding means to move said magazine said second distance, said member being rotatable relative to said connecting means after each of said movements of said magazine for changing the cooperative relationship between said member and said first and second guiding means; an actuating member movable with said driving means and normally in an operative position for rotating said member, after each of said movements of said magazine for changing the cooperative relationship between said member and said first and second guiding means, said actuating member being adapted to be moved out of said operative position; and means for moving said actuating member out of said operative position.

5. In an automatic record-changing apparatus, the combination comprising a magazine movable first and second distances at different times; driving means movable through a cycle of operation for each of said movements of said magazine; first and second guiding means on said driving means; connecting means operatively associated with said magazine; a member operatively associated with said connecting means and adapted to rotate relative thereto to first and second positions for cooperating with said first guiding means when said member is in said first position to move said magazine said first distance and for cooperating with said second guiding means when said member is in said second position to move said magazine said second distance; resilient means on said connecting means for locking said member in said first and second positions; and an actuating member movable about the axis of said driving means for rotating said member between said first and second positions after each of said movements of said magazine, whereby said member is brought into cooperative relationship alternately with said first and second guiding means.

6. In an automatic record-changing apparatus, the combination comprising a magazine movable first and second distances at different times; a driving member movable through a cycle of operation for each of said movements of said magazine; a guiding member movably connected to said driving member having first and second guiding paths; connecting means operatively associated with said magazine; a member operatively associated with said connecting means for cooperating with said first guiding path to move said magazine said first distance and for cooperating with said second guiding path to move said magazine said second distance, said member being rotatable relative to said con necting means after each of said movements of said magazine for changing the cooperative relationship between said member and said first and second guiding paths, and an actuating member movable about the axis of said driving member for rotating said member after each of said movements of said magazine for changing the cooperative relationship between said member and said first and second guiding paths.

7. In an automatic phonograph having a turntable, the combination comprising a driving means for carrying out a record-changinglcycle and a record-reversing cycle; a record-releasing member movable by said driving means for carrying out a record-releasing operation, said record-releasing member being adapted to be moved into an inoperative position; an oscillatory member movable by said driving means for guiding a record during said record-changing cycle and said record-reversing cycle; a record-reversing memhenadapted to be moved into an operative position during said record-reversing cycle for cooperaitng with said oscillatory member for reversingaw record on said turntable; and resilient actuating means associated with said driving means for being actuated during said recordreversing cycle for moving said record-releasing member into said inoperative position and moving said record-reversing member into said operative position.

8. In an automatic phonograph having a turntable, the combination comprising a driving means for carrying out a record-changing cycle and a record-reversing cycle; a record-releasing member movable by said driving means for carrying out a record-releasing operation, said recordreleasing member being adapted to be moved into an inoperative position; an oscillatory member movable by said driving means for guiding a record during said record-changing cycle and said record-reversing cycle; a record-reversing member adapted to be moved into an operative position during said record-reversing cycle for co-- operating with said oscillatory member for reversing a record on said turntable; resilient actuating means associated with said driving means for being actuated during said record-reversing cycle for moving said record-releasing member into said inoperative position and moving said record-reversing member into said operative position; and locking means operatively associated with said driving means to be actuated thereby during a record-changing cycle for locking said actuating means to prevent its operation during said record-changing cycle.

9. In an automatic phonograph having a turntable, the combination comprising a driving means for carrying out a record-changing cycle and a record-reversing cycle; first and second guiding means on said driving means; a movable magazine for supporting a plurality of records, said magazine being movable a first distance during said record-changing cycle and a second distance during said record-reversing cycle; connecting means operatively associated with said magazine; a member operaitvely associated with said connecting means for cooperating with said first guiding means to move said magazine said first distance and for cooperating with said second guiding means to move said magazine said second distance, said member being rotatable relative to said connecting means after each of said movements of said magazine for changing the cooperative relationship between said member and said first and second guiding means; a record-releasing member movable by said driving means for releasing a record from said magazine, said record-releasing member being adapted to be moved into an inoperative position; an oscillatory member movable by said driving means for guiding a record during said record-changing cycle and said record-reversing cycle; a recordreversing member adapted to be moved into an operative position during said record-reversing cycle for cooperating with said magazine and said oscillatory member for reversing a record on said turntable; an actuating member movable with said driving means and normally in an operative position for rotating said member after each of said movements of said magazine for changing the cooperative relationship between said member and saii first and second guiding means, said actuating member being adapted to be moved out of its operative position; resilient actuating means associated with said driving means for being actuated during said recordreversing cycle for moving said record-releasing member into its inoperative position and moving said record-reversing member into its operative position; and movable means for preventing the reversing of a record and having a. first element operatively associated with said actuating membar and a second element operatively associated with said actuating means, the actuation of said means moving said first element for moving said actuating member out of its operative position and moving said second element into locking engagement with said actuating means.

JACKSON H. PRESSLEY. 

